Sand-ctjttina machine



H. L. WADSWORTH. SAND CUTTING MACHINE. APPLICATION FILED vac. 12, 19:9.

1,349,988, Patented Aug. 17, 1920.

UNITED STATES PATENT OFFICE.

Patented Aug. 17, 1920.

it? 3 SAND-CUTTING MACHINE.

not-"i" all Ill-$349,988. Specification at Letters Patent.

ill Application filed Decenilier 12, 1919. Serial No. 344,415.

To all whom it may concern:

fj'B'ed-t known thatl, HOWARD L. WADS- 'wljf a citizen of the United States, and

a'Y-f'hiflent of Cleveland, county of buyer- 6 htiglig an'cl State of Ohio, have invented a neWfan'd useful Improvement in Sand-(Jutachines, of which the following is a ification, the principle of the invention ill bel herein explained and the best mode in 10 wh'c' fl have contemplated applying'tliat 1e, so as to distinguish it from other ,iliy' liti'ons. ',I' present improvements, relating to san'gi cutting machines, are more particu lzitly'tlirected to a machine of this general tip ic'onstructed. for manual propulsion ove; a floor and through a pile of sand to lptllnixed. present theonly machj nfes use for cutt ng and mixing mold- 2'0 folfoundries are large and ex pensive machines and are adapted for use 1n vla rge toundries only, withthe result that thesaving which can be effected by the use of such-machines is entirely lost to all of the srhitller loundries, who are compelled to cut and mix their sand by hand.

The chief object of the present invention is the provision of a relatively cheap and light machine which can be used for smaller foundries and can be propelled by one or two men, who pull it through a pile of sand which is to be cut. To thcaccomplislnnent ol' the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and part1cularly pointed out in the claims.

The annexed drawing and the "following description set forth in detail certain. mechanism embodying the invention, such dis- 40 closed means col'istituting, however, but one of the various mechanical forms in which the principle of thc invcntien'umy be used.

In said annexed drawing:-

Figure 1 is a side elevation ol mvimproved machine; and Fig. 2 is a plum view of the same.

In Fig. 2 l have shown the machine as consisting oi a forked framework. in which two side members 1 and 2 are traction wheels 3. and are then carved into the torn: shown in Fig. and combined to form a single handle 4. Each of the side l'ramc iucnibcrs 1 and 2 are directed in- .nurdly after passing the wheels 3 and are 55 provided with two vertical forks 5 and 6,

within which are mounted shafts 7, carrytween the wheels be pushed instead ol being mountcd upon ing a series oi? vertical blades 8 and constituting a sand-cutting cylinder. thus two vertically arranged sand cutting cylinders mounted at a considerable dis tance from the axis of the wheels 3 and thus adapted to be raised and lowered toward the ground by raising or lowering the handle 4. and in this way the elevation of the cutting cylinders may be varied as conditions require.

Mounted upon the members 1 and 2 is a suitable source of power, such as an electric motor it), connected by means of a. driving chain or belt ll to a transversely extending horizontal shaft 12 mounted in the upper frame members 5. and connected by means of bevel gears 13 and 14 to the vcrtical shafts 7, which drive the cutting cylinders. It is intended that the machine will be pulled over the ground and over and through a pile of sand in the direction indicated by the arrow A, with the cutting cylinders revolving toward each other, the arrows A on Fig. 2. Steel plates 15 are mounted on each side of the frame be and extend rearwardly to a point alincd with the center of the sandcutting cylinders for directing the sand into the path of movement of these cylinders.

The direction of rotation of the sandcutting cylinders may be rcvcrscd to drivc tllcse cylinders in directions opposite the arrows on Fig. 2, in which case the sand will be delivered at high speed against the side plates 15, which will either stop the movement of the sand or direct it in a direction opposite to the movement of the machine. in this way leaving the sand pile o't' thc same width-as the distance between the platcs 15.

Similarly. the direction of movement of the machine may be reversed, that is, it may pulled, in which cvcnt the cvlindcrs might best be operated in'the directions oppo ite to the arrows, to give the same action as is obtained when the machine is opcratcd in accordancc with the a rrows A and A.

This improvcd machine can he built at a relatively low cost, since it consists primarily ot' nothing, but a frame carrying the two cutting cylinders, and a motor, and is adapted for all small foundrie whcre the cost ol. a larger and more complicated machine is out of thc questionf Other modes of applyingkhg principle of There are.

as indicated bymy invention may be employed instead of the one explained, change g made as regards the mechanism here disclosed, rovided the means stated by any of the allowing-claims or the e uivalent of'such stated means be em 19 e I therefore particu ar y point out and distinctl claim as my'1nVent10n:

1. iii a machin of the character described, the combi at'ion of a frame, a pair of supporting wheels therefor, a rotary sand-cutting element mounted on said frame on one side of the axis of said Wheels, and a handle attachedto said frame on the other side of said axis from said cutting element.

2. In a machine of the character described, the combination of a frame, a pair of supporting wheels therefor, a rotary sand-cutting element mounted on said frame on one side of the axis of said wheels, a motor connected to operate said element, said motor being mounted on said frame on the other side of such wheels axis from said element and thereby assisting to counterbalance the same, and a handle attached to said frame for propelling the same.

3. In a machine of the character described, the combination of a frame, a pair of supporting wheels therefor, a rotary sand-cutting element mounted on -aid frame on one side of the axis of said wheels, :1

motor connected to operate said element, said motor being mounted on said frame on the other side of such wheels axis from said element and thereby assisting to counter-balance the same, and a handle attached to said frame and extendin longitudinally thereof at one side of said rame.

4. In' a machine of the character described, the combination of a frame, a pair of supportin wheels therefor, a rotary sand-cutting e ement mounted on said frame on one side of the axis of said wheels, said frame comprising two side members mount ed on said wheels, said members then being joined and extended as one member serving as a ropelling handle for said member.

5. n a machine of the character described, the combination of a frame comprising two spaced side members having adjacent end portions converging toward each other, and said members then being joined at their other ends and extended as one handle member, supporting wheels mounted in said frame members, two vertical sandcutting cylinders mounted at the converging end portions of said frame members, and :1 motor mounted on said frame and connected to operate said cylinders.

Signed by me, this 9" day of December,

HOWARD L. W'ADSWORTH. 

